US$ 412.85
Hand-cranked 4-stroke gasoline engine model at 13
letting students trace renewable-energy conversion step by step
sized to reconfigure the demonstration meter as a 0-500mA ammeter for general-purpose student bench work
bundle sheath
12-Piece Steel Extension Spring Set, 6-9" Physics_Force & Motion Hand-cranked 4-stroke gasoline engine modelTwelve spring steel extension set paired across six size combinations with looped ends, offering a spread of spring constants for simultaneous comparison in oscillation and Hooke's Law experiments.
US$ 412.85
US$ 554.06
US$ 254.98
US$ 102.95
US$ 42.00
US$ 14.00
US$ 39.00
US$ 18.00
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US$ 64.67
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